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Top Forums Shell Programming and Scripting Need help with Korn Shell script for substring printing Post 302564318 by kraljic on Thursday 13th of October 2011 10:20:07 AM
Old 10-13-2011
Need help with Korn Shell script for substring printing

Hi all,
I am new to scripting.

I have a file with colon separated values called mylist.txt

Code:
cat mylist.txt
192.123.76.89:lmprod89
162.122.20.28:lmtstserver28
10.80.32.139:hewprod139

.
.


using our internal os utility (called mvsping) we need to check all these servers if they are reachable


Our field 1 is IP and field2 is servername. I need the output of the script's to show a message like

Server : $servername "with IP "$ipaddress"is pingable"

I know how to write the IF condition part here by checking the exit status. But i need some help in looping through each lines getting field1 and printing servername(which is field2) like above if the exit statu is 0


Using korn shell, i need to write this script . Will this require a loop inside a loop ?


Code:
for iplist in `cat mylist.txt | cut -d: -f1`
do
  if
  #i will do my logic using vsping in IF condition here
  #it will be something like
  # vsping ip . if exit status = 0 , then pingable
  
  
  
  
  fi

done

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Last edited by vbe; 10-13-2011 at 12:29 PM..
 

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ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)
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